p {
    color: red;
}

h1 {
    color: gray;
}

h2 {
    color:olive;
}

span {
    color: purple;
}

#selector p span {
    color: orange;
}

.one {
    color: yellow;
}

.two {
    color: yellowgreen;
}

#left {
    color: black;
}

#poem h2 {
    color: blue;
    background-color: grey;  /*背景颜色*/
    /* 字体 */
    /* font: 25px italic lighter; */
    font-family: Arial, Helvetica, sans-serif;
    font-size: 25px;           /*字号*/
    font-style: italic;        /*字体样式*/
    font-weight: lighter;      /*字重*/
    text-align: center;
}

#poem p {
    letter-spacing: 10px;    /*字符间距*/
    line-height: 2em;
    /* 文本 */
    text-decoration: underline; /*下划线*/
    text-align: center;
    text-indent: 4px;
}

#poem2 {
    background-image: url("./logo.png");
    background-repeat: repeat-x;
}

#poem2 a:link {
    color: orange;
}

#poem2 a:visited {
    color: violet;
    text-decoration: none;
}

#poem2 a:hover {
    color: blue;
    font-size: 120%;
}

#poem2 a:active {
    color: black;
}

#products ul {
    /* list-style: square inside; */
    list-style-type: square;
    list-style-position: inside;
}

#grades table {
    width: 500px;
    height: 200px;
    border: 2px solid;
    /* border-collapse: ; */
}

#grades td {
    text-align: center;
}